public class Example4_10 {
   public static void main(String args[]) {
     Lade.下底 = 100;   //Lade的字节码被加载到内存，通过类名操作类变量
     Lade ladeOne = new Lade();
     Lade ladeTwo = new Lade();
     ladeOne.设置上底(28);
     ladeTwo.设置下底(66);
     System.out.println("ladeOne的上底:"+ladeOne.获取上底());
     System.out.println("ladeOne的下底:"+ladeOne.获取下底());
     System.out.println("ladeTwo的上底:"+ladeTwo.获取上底());
     System.out.println("ladeTwo的下底:"+ladeTwo.获取下底());
   }
}
